All of lore.kernel.org
 help / color / mirror / Atom feed
From: Stefano Stabellini <sstabellini@kernel.org>
To: Dario Faggioli <dfaggioli@suse.com>
Cc: nd <nd@arm.com>, Stefano Stabellini <sstabellini@kernel.org>,
	Saeed Nowshadi <saeed.nowshadi@xilinx.com>,
	Davorin Mista <dm@aggios.com>,
	Xen Devel <xen-devel@lists.xen.org>,
	Julien Grall <Julien.Grall@arm.com>,
	xen-devel <xen-devel@lists.xenproject.org>,
	Stefano Stabellini <stefano.stabellini@xilinx.com>,
	Mirela Simonovic <mirela.simonovic@aggios.com>
Subject: Re: [PATCH 17/18] xen/arm: Resume Dom0 after Xen resumes
Date: Fri, 16 Nov 2018 15:06:41 -0800 (PST)	[thread overview]
Message-ID: <alpine.DEB.2.10.1811161505530.22115@sstabellini-ThinkPad-X260> (raw)
In-Reply-To: <855b1bb125bb3ec2a7d51dd0144787700d6568c0.camel@suse.com>

On Sat, 17 Nov 2018, Dario Faggioli wrote:
> On Fri, 2018-11-16 at 21:58 +0000, Julien Grall wrote:
> > On 16/11/2018 21:41, Mirela Simonovic wrote:
> > > On Fri, Nov 16, 2018 at 8:09 PM Stefano Stabellini
> > > <sstabellini@kernel.org> wrote:
> > > > > It should be possible to figure out which domain needs to
> > > > > awaken from
> > > > > there.
> > > > 
> > > > Actually, evtchn_send eventually will trigger a proper interrupt
> > > > injection into the domain
> > > > (xen/arch/arm/vgic.c:arch_evtchn_inject),
> > > > which will necessarely wake it up. So it is possible that it will
> > > > already work without any need for additional changes?
> > > > 
> > > 
> > > Absolutely, that sounds great :) Then we could just drop this
> > > patch.
> > 
> > I don't think you can drop this patch... As you tie the host suspend
> > to 
> > the hardware domain suspend, it may makes sense to resume at the same
> > time.
> > 
> FWIW, I think that too.
> 
> In fact, let's assume a *fully* disaggregated setup, where dom0 only
> has the toolstack, while it has no hardware, no PV backend, etc... If
> we don't resume it explicitly together with Xen, who is going to resume
> it? :-O

Yes, that's right. However, it should work for driver domains: there is
no need to wake up driver domains explicitly because they will be
woken up by the frontends?


> <<This happens because I choose it to happen!>> (Raistlin Majere)
> -----------------------------------------------------------------
> Dario Faggioli, Ph.D, http://about.me/dario.faggioli
> Software Engineer @ SUSE https://www.suse.com/
> 

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel

  reply	other threads:[~2018-11-16 23:06 UTC|newest]

Thread overview: 153+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-12 11:30 [PATCH 00/18] xen/arm64: Suspend to RAM support for Xen Mirela Simonovic
2018-11-12 11:30 ` [PATCH 01/18] xen/arm: Move code that initializes VCPU context into a separate function Mirela Simonovic
2018-11-12 11:41   ` Jan Beulich
2018-11-12 11:43   ` Wei Liu
2018-11-12 13:15   ` Julien Grall
2018-11-14 11:45     ` Mirela Simonovic
2018-11-12 11:30 ` [PATCH 02/18] xen/arm: Implement PSCI system suspend call (virtual interface) Mirela Simonovic
2018-11-12 11:42   ` Jan Beulich
2018-11-12 11:50     ` Mirela Simonovic
2018-11-12 12:45       ` Jan Beulich
2018-11-12 15:27   ` Julien Grall
2018-11-12 16:35     ` Mirela Simonovic
2018-11-12 16:41       ` Andrew Cooper
2018-11-12 19:56         ` Julien Grall
2018-11-13  8:32           ` Andrew Cooper
2018-11-14 12:08             ` Mirela Simonovic
2018-11-14 12:49               ` Julien Grall
2018-11-15  0:47                 ` Andrew Cooper
2018-11-15 10:13                   ` Julien Grall
2018-11-15 10:26                     ` Andrew Cooper
2018-11-15 10:33                       ` Mirela Simonovic
2018-11-15 10:59                         ` Julien Grall
2018-11-15 11:10                           ` Mirela Simonovic
2018-11-15 11:38                             ` Julien Grall
2018-11-15 11:42                               ` Mirela Simonovic
2018-11-15 19:30                                 ` Stefano Stabellini
2018-11-15 20:25                                 ` Julien Grall
2018-11-16 22:10                               ` Dario Faggioli
2018-11-15 10:36                       ` Julien Grall
2018-11-15 10:36                       ` Julien Grall
2018-11-15 10:50                         ` Andrew Cooper
2018-11-13  1:53         ` Stefano Stabellini
2018-11-13  9:41           ` Julien Grall
2018-11-13 20:39             ` Stefano Stabellini
2018-11-14 13:10               ` Julien Grall
2018-11-14 23:08                 ` Stefano Stabellini
2018-11-12 20:29       ` Julien Grall
2018-11-13 20:39         ` Stefano Stabellini
2018-11-14 10:45           ` Julien Grall
2018-11-14 12:35             ` Mirela Simonovic
2018-11-14 13:05               ` Julien Grall
2018-11-14 14:48                 ` Julien Grall
2018-11-14 15:36                   ` Mirela Simonovic
2018-11-14 15:37                     ` Mirela Simonovic
2018-11-14 15:51                     ` Julien Grall
2018-11-13 10:23   ` Julien Grall
2018-11-13 15:09     ` Julien Grall
2018-11-14 12:44       ` Mirela Simonovic
2018-11-12 11:30 ` [PATCH 03/18] xen/arm: Save GIC and virtual timer context when the domain suspends Mirela Simonovic
2018-11-12 15:36   ` Julien Grall
2018-11-12 16:52     ` Mirela Simonovic
2018-11-12 17:00       ` Julien Grall
2018-11-12 17:42         ` Mirela Simonovic
2018-11-12 19:20           ` Julien Grall
2018-11-13 20:44             ` Stefano Stabellini
2018-11-14 10:48               ` Julien Grall
2018-11-14 22:45                 ` Stefano Stabellini
2018-11-14 23:39                   ` Julien Grall
2018-11-15  0:05                     ` Julien Grall
2018-11-15  0:35                     ` Stefano Stabellini
2018-11-15 20:29                       ` Julien Grall
2018-11-12 11:30 ` [PATCH 04/18] xen/arm: While a domain is suspended put its watchdogs on pause Mirela Simonovic
2018-11-12 11:47   ` Jan Beulich
2018-11-12 15:17     ` Mirela Simonovic
2018-11-12 15:23       ` Jan Beulich
2018-11-12 15:31         ` Mirela Simonovic
2018-11-12 15:33           ` Andrew Cooper
2018-11-16 22:40             ` Dario Faggioli
2018-11-12 11:30 ` [PATCH 05/18] xen/arm: Trigger Xen suspend when Dom0 completes suspend Mirela Simonovic
2018-11-12 15:45   ` Julien Grall
2018-11-12 23:46     ` Stefano Stabellini
2018-11-13  9:43       ` Julien Grall
2018-11-13 11:26         ` Mirela Simonovic
2018-11-13 11:42           ` Julien Grall
2018-11-14 15:07   ` Julien Grall
2018-11-14 15:40     ` Mirela Simonovic
2018-11-14 17:10       ` Julien Grall
2018-11-14 17:35         ` Mirela Simonovic
2018-11-14 18:48           ` Julien Grall
2018-11-15 12:37             ` Mirela Simonovic
2018-11-15 18:23   ` Julien Grall
2018-11-15 19:17     ` Mirela Simonovic
2018-11-15 20:47       ` Julien Grall
2018-11-12 11:30 ` [PATCH 06/18] xen/x86: Move freeze/thaw_domains into common files Mirela Simonovic
2018-11-13 22:37   ` Stefano Stabellini
2018-11-12 11:30 ` [PATCH 07/18] xen/arm: Freeze domains on suspend and thaw them on resume Mirela Simonovic
2018-11-12 11:30 ` [PATCH 08/18] xen/arm: Disable/enable non-boot physical CPUs on suspend/resume Mirela Simonovic
2018-11-13 22:35   ` Stefano Stabellini
2018-11-14 12:07     ` Julien Grall
2018-11-14 10:52   ` Julien Grall
2018-11-14 13:00     ` Mirela Simonovic
2018-11-14 13:18       ` Julien Grall
2018-11-14 23:04         ` Stefano Stabellini
2018-11-14 23:45           ` Julien Grall
2018-11-15 18:57             ` Stefano Stabellini
2018-11-15 21:09               ` Julien Grall
2018-11-12 11:30 ` [PATCH 09/18] xen/arm: Add rcu_barrier() before enabling non-boot CPUs on resume Mirela Simonovic
2018-11-13 22:42   ` Stefano Stabellini
2018-11-14 12:11   ` Julien Grall
2018-11-14 22:29     ` Stefano Stabellini
2018-11-12 11:30 ` [PATCH 10/18] xen/arm: Implement GIC suspend/resume functions (gicv2 only) Mirela Simonovic
2018-11-13 23:41   ` Stefano Stabellini
2018-11-14  9:13     ` Julien Grall
2018-11-14 11:57       ` Mirela Simonovic
2018-11-14 12:41   ` Julien Grall
2018-11-14 12:52     ` Mirela Simonovic
2018-11-14 13:24       ` Julien Grall
2018-11-14 22:18         ` Stefano Stabellini
2018-11-14 23:50           ` Julien Grall
2018-11-15 18:26             ` Stefano Stabellini
2018-11-12 11:30 ` [PATCH 11/18] xen/arm: Suspend/resume GIC on system suspend/resume Mirela Simonovic
2018-11-12 11:30 ` [PATCH 12/18] xen/arm: Suspend/resume timer interrupt generation Mirela Simonovic
2018-11-12 11:30 ` [PATCH 13/18] xen/arm: Implement PSCI SYSTEM_SUSPEND call (physical interface) Mirela Simonovic
2018-11-14  0:14   ` Stefano Stabellini
2018-11-14 12:03     ` Mirela Simonovic
2018-11-15 21:20   ` Julien Grall
2018-11-12 11:30 ` [PATCH 14/18] xen/arm: Convert setting MMU page tables code into a routine Mirela Simonovic
2018-11-12 11:30 ` [PATCH 15/18] xen/arm: Resume memory management on Xen resume Mirela Simonovic
2018-11-12 16:17   ` Julien Grall
2018-11-13  1:36     ` Stefano Stabellini
2018-11-13  9:59       ` Julien Grall
2018-11-13 21:35         ` Stefano Stabellini
2018-11-13 22:24           ` Julien Grall
2018-11-12 11:30 ` [PATCH 16/18] xen/arm: Save/restore context on suspend/resume Mirela Simonovic
2018-11-12 11:30 ` [PATCH 17/18] xen/arm: Resume Dom0 after Xen resumes Mirela Simonovic
2018-11-15 20:31   ` Julien Grall
2018-11-16 10:33     ` Mirela Simonovic
2018-11-16 11:29       ` Mirela Simonovic
2018-11-16 11:44         ` Julien Grall
2018-11-16 12:34           ` Mirela Simonovic
2018-11-16 13:24             ` Julien Grall
2018-11-16 19:03               ` Stefano Stabellini
2018-11-16 19:09                 ` Stefano Stabellini
2018-11-16 21:41                   ` Mirela Simonovic
2018-11-16 21:58                     ` Julien Grall
2018-11-16 23:01                       ` Dario Faggioli
2018-11-16 23:06                         ` Stefano Stabellini [this message]
2018-11-17 16:01                           ` Mirela Simonovic
2018-11-17 16:02                             ` Mirela Simonovic
2018-11-17 16:19                               ` Mirela Simonovic
2018-11-27 18:36                             ` Julien Grall
2018-11-29 14:02                               ` Mirela Simonovic
2018-12-04 18:15                                 ` Julien Grall
2018-11-12 11:30 ` [PATCH 18/18] xen/arm: Suspend/resume console on Xen suspend/resume Mirela Simonovic
2018-11-27 18:46   ` Julien Grall
2018-11-12 11:37 ` [PATCH 00/18] xen/arm64: Suspend to RAM support for Xen Mirela Simonovic
2018-11-12 11:49 ` Julien Grall
2018-11-12 12:01   ` Mirela Simonovic
2018-11-12 12:08     ` Julien Grall
2018-11-12 12:35       ` Mirela Simonovic
2018-11-13  2:22   ` Stefano Stabellini
2018-11-13 10:02     ` Julien Grall
2018-11-13 18:06       ` Stefano Stabellini

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=alpine.DEB.2.10.1811161505530.22115@sstabellini-ThinkPad-X260 \
    --to=sstabellini@kernel.org \
    --cc=Julien.Grall@arm.com \
    --cc=dfaggioli@suse.com \
    --cc=dm@aggios.com \
    --cc=mirela.simonovic@aggios.com \
    --cc=nd@arm.com \
    --cc=saeed.nowshadi@xilinx.com \
    --cc=stefano.stabellini@xilinx.com \
    --cc=xen-devel@lists.xen.org \
    --cc=xen-devel@lists.xenproject.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.